Abstract
PTEN-induced kinase1 (PINK1) mutation is the main cause of autosomal recessive inheritance and early-onset Parkinson’s disease. Mitochondrial respiratory chain complex I (CI) functional impairment has been considered to be an important factor in the pathogenesis of PD in recent years. In addition, NDUFS3 (nicotinamide adenine dinucleotide deoxylase iron-thionein 3) is one of the core subunits of mitochondrial CI. Therefore, this study explored the role of NDUFS3 gene in PINK1B9 transgenic Drosophila and its possible related mechanisms. In this study, the PD transgenic Drosophila model of MHC-Gal4/UAS system was selected to specifically activate the expression of PINK1B9 gene in the chest muscle tissue of Drosophila melanogaster. NDUFS3 RNAi interference was used to interfere with PINK1B9 transgenic Drosophila melanogaster and its effect on PD transgenic flies was studied. The results suggest that down-regulation of NDUFS3 gene expression may have a protective effect on PINK1B9 transgenic Drosophila melanogaster, and we speculate that down-regulation of NDUFS3 gene expression to reduce oxidative stress and restore mitochondrial function may be related to mitochondrial stress response.
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